--What’s in the bag? -There_______a pen,ten books and a dictionary. A.am B. is C. are
—Why are you standing there,Mingming?—Two tall boys are sitting________me,so I can’t see the blackboard clearly.
Sally used to be________,but now she enjoys meeting and talking to new friends.
I used to________in the morning,but now I’m used to________before going to bed.
He is terrified of________alone in the street at night.
—Do you still remember that accident,Danny?—Of course.I’ll never forget it________it happened so long ago.